This seems an amazing failure of due diligence, but only if the researchers had intended to issue a balanced and factual report.

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In its "interim factual report", released alongside hundreds of pages of related documents, the NTSB said it was still looking into the probable cause.

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However, the NTSB said it still had many more leads to investigate and hoped to produce an interim factual report, but not a final report, within 30 days.

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Earlier Bob Stubbs, the chief executive of Wembley National Stadium Ltd, dismissed calls to rework the design and said the report contained factual inaccuracies.

BBC: News Online

During this session, students watched several of the Huw Edwards video clips, while during today's News Day, the students focussed on structuring a single report, using a factual beginning, a middle containing an interview and a way of rounding it off.

BBC: December's practice News Day